package base;

public class demo {
    public static void main(String[] args) {
        String wife = "侯雪";
        System.out.print(wife);
        String a = "b";
        int b = 10;
        System.out.println(b);
        System.out.println(a);
        System.out.println("===========================================");
        String sa = new String ("hello world");
        String sb = new String ("hello world");
        System.out.println(sa==sb);


    }
}
